Features: Compatible with machine such as Maker/Explore/Explore One/Explore Air/Explore Air2/Cricut Maker 3/Maker Aosry. These pen adapters can replace stock pen holder to allow use of other most popular markers and pens (Sharpie/Bic/Crayola/Sakura/Pilot/Pentel/Paper Mate/Mitsubishi uni-Ball) in your machine. Each color represents a different fit model, which you can easily identify by the number on the top. Depth calibration is not required as the adapter perfectly aligns each pen/mark for precise height and point center. Comes with a purple blade housing, you can use with 30/45/60blade to meet your need. Specification: Blade length: 2.4cm/0.94in Material: Stainless Steel Package Weight: 62g/2.1oz Note: Theblade is not included in the package. Packing List: 1 x Cutiing Blade Housing 17 x Pen Adapter